My build isn't even finished yet, but you can have a small preview of how it will look. The next improvements will be on Attack power, when upgrading my weapons to +13 and switching some HG lvl 70 STR jades + VIT to HG lvl 80 STR jades + VIT. I also scheduled an upgrade on my HG light jades (which are lvl 70) so I will get a small boost on my elemental attack as well.

On the left you can see the stats in town without using anything special, on the centre you see how it is adding restoration aura, elemental aura and bubbles and on the right you can see the max stats reached by self buffs on my character (no ROB).

Little (big) update after doing a hella lot of upgrades on light element:

At self-buff stage,

Critical: 32%
Critical damage: 232%
Move speed: +53%
Final damage: 9%

You can see how I finally got my technique rings and my L grade light jades for weapons as well. Next step is to +14 the light jades on the techs, upgrade the lvl 70 STR + VIT jades which fill all the armor slots to lvl 80 STR+VIT jades and try to +13 the main weapon (which refuses to go higher than +12 for some reason). As for plates, the only one I'm missing is Tent of enhancement heraldry level 90 + Ph defense.

I appreciate feedback too, don't hesitate to speak, if you wish to see how the build evolved, check two posts upwards and you will see it.

Switched to int jades because of 90 gear but I still have str tech and 3rd stats so it's kind of a mess, but the results are already better than str cause of balanced stats on IDNL. Bit better under JP -barely noticeable-, a lot better when it's not up. With awakenings and 30% to str and int passive, coupled with lower atk return from JP, the difference will be bigger and I think even 80L crusaders might want to just switch to int. All three of them or however many there are left xd

Crit capped for 93 without a fatal plate somehow, so it's back to sader needing this gear to even think of functioning in the current cap. Plate slots are overcrowded especially if you want to make use of attack / concentration / limitation and saving room for one of those is huge.
Also waiting for L earrings. Don't look at those e.e

U just make me want to JC my Guardian to a Crus e.e, btw all the Wise jades are +15 right ?. Hmm since Guardian (or maybe JC to Crus) is an alt, do u think +10 Wise jades are enough ? say x5 on armors (not variant on helm) and 2 on earring and necklace means I don't have some extra INT and 175 FD.

Waiting for awakenings to even dare to recommend Crusader to anyone. Right now, it's pretty bad strictly speaking (utility and so on, it only has second provoke), mediocre dps

With awakenings hopefully damage will be better and you get armor break dmg debuff meaning it makes for a fine solo class (both elemental and dmg debuff layer). Now nope. At least guardian has its uses since it's a tank.

Those stats are with full IDNL +12 weapons +13 and HC first clear title and epic costume / 3rd stats etc and it's still unimpressive given the %s some classes have on their skills coupled with their 300k+ attack or m.atk stats

Curious to try both with IDNL after awakenings, but as of right now I'd stay Guardian if I were you unless you really like the gameplay cause there's literally no other reason to stick to Crusader atm